Dipolar quantum logic for freely rotating trapped molecular ions
Dipolar quantum logic for freely rotating trapped molecular ions
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DOI：
10.1103/physreva.98.040302
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发表时间：
2018-10-25
影响因子：
2.9
通讯作者：
Campbell, Wesley C.
中科院分区：
文献类型：
--
作者：
Hudson, Eric R.;Campbell, Wesley C.
我们考虑了使用共俘获分子离子之间的直接电偶极子-偶极子相互作用来实现鲁棒量子逻辑而不需要静态极化场的实际可行性。与静态电偶极子相反，使用振荡偶极矩可以动态地将偶极子与实验室场（包括陷阱本身的电场）解耦。此外，这种实现不需要运动的量子控制，有可能消除离子阱量子计算可扩展性的主要障碍。由于极化场是电磁辐射，因此即使在太赫兹范围内具有分裂的状态对也可以完全极化。
We consider the practical feasibility of using the direct, electric dipole-dipole interaction between cotrapped molecular ions for robust quantum logic without the need for static polarizing fields. The use of oscillating dipole moments, as opposed to static electric dipoles, dynamically decouples the dipoles from laboratory fields, including the electric fields of the trap itself. Further, this implementation does not require the quantum control of motion, potentially removing a major roadblock to ion trap quantum computing scalability. Since the polarizing field is electromagnetic radiation, even pairs of states with splittings in the THz regime can be fully polarized.